Chapter 752: Integration

"From the plants at the excavation site, the burial time of the suitcases containing antiques is between one and two years. Now it is preliminarily determined to be October last year. As long as the approximate location before this is determined, the case can have great progress."

Jiang Yuan stood out and began to integrate the case and technology together.

The chat direction of the crowd changed instantly.

Captain Pang Jidong asked: "Can your road camera data be kept for so long?"

"No." Cui Qishan replied, and added: "Some portrait capture points on main roads might be able to, this also needs to determine which section of the road it is, and then see if the suspect is driving, riding, or walking."

"Then why not try satellites?" The botanist who just pulled out the satellite map immediately opened the computer, swiped and opened several websites, pondering: "Can find several satellite data to try luck, such as worldview3, worldview4, BJ No. 3 satellites, the resolution is 0.3 meters, should be able to identify people."

"Just when the satellite passes, the suspect also passes? The probability is too low."

"Some satellites pass very frequently, many in a day, this is Beijing. Moreover, the number of satellites is also very large. In addition to what was just said, geoeye, kompsat-3A and the like have at least a dozen 0.4-meter commercial optical satellites, pleiades, Gaojing No. 1 and the like 0.5-meter ones are more..." The botanist who engaged in satellites counted them like family treasures.

Cui Qishan's eyes lit up: "Can it still be like this? This is much clearer than the satellite map of Baidu Maps."

The botanists all laughed.

Captain Pang Jidong coughed twice and said: "Don't buy satellite data additionally, use the remote sensing satellite resources in the background if you can, if you can't, forget it, it's not cheap."

Tao Lu sensitively said: "We are doing an antique case... things like satellites are too advanced, no need, no need at all."

The botanist who just read a string of satellite names frowned: "Isn't the police station quite rich now?"

"That can't be spending money to draw a lottery."

"Buying more won't be drawing a lottery. In fact, if you are willing to spend money, you don't even need to buy data, just buy this suspect, let the satellite company find it for you. In this way, the cost of tens of millions of satellite data resources is saved. Even if they find 100 people to search for data, it will only be an expenditure of hundreds of thousands of yuan. Alas, doing it like this, the cost is much lower!"

Tao Lu's ears were about to swell: "I'm just investigating a case of tens of millions, and I spend hundreds of thousands? Or tens of millions? That's not a losing business!"

"Your police station is originally a unit that spends money. Even if you find the antiques, you can't sell them. Spending hundreds of thousands or tens of millions, isn't it all for solving the case... alas..." The botanist shook his head while speaking. He wanted to rub some satellite resources, but Tao Lu showed that he was really poor.

Then forget it.

"Let's determine the specific location first. Pull out the satellite map of Aolin West Road." Jiang Yuan gave an order to Wang Chuanxing.

The background of the Zhengguang Bureau also has satellite remote sensing images of the whole city. In fact, many satellite image data are free, such as many data from NASA, such as the data of the US Keyhole reconnaissance satellite until 1984, almost 25 years, can be obtained for free.

Theoretically, people all over the world can see what Americans saw through satellites in the 60s and 70s!

In contrast, a small green belt on Aolin West Road, brushing down from the satellite map, feels very ordinary.

"The pollen distribution of the green belt on Aolin West Road indeed conforms to the types of pollen we extracted." Jiang Yuan made a judgment first, and added: "Now to determine the specific location, it depends on the proportion of pollen."

Jiang Yuan took out his notebook again, looked at it twice, and said: "Although the suitcases have been buried in the soil for a period of time, there is still pollen attached to the suitcases, and there is also a lot of pollen in the soil, especially on this side between the two suitcases, the amount of pollen left is the largest and most."

"The quantity and types of pollen found in the suitcases are far less than outside the suitcases, but look closely at their types, basically they are also near the green belt of Aolin West Road."

"In this way, it shows that these two suitcases not only contacted the green belt of Aolin West Road, or were placed near the green belt of Aolin West Road for a long time, but also had this situation when the suitcases were opened."

Jiang Yuan stopped while speaking, and the botanists were not surprised, just waiting quietly.

For those engaged in academics, it is normal to have new ideas when they are passionate.

There were those who took notes, and at this time read the words Jiang Yuan just said repeatedly—if Jiang Yuan could realize something through these words, maybe he could too.

"Actually, the pollen found in the suitcases may not necessarily be what fell in after the suitcases were opened. No one would leave the suitcases open there for a long time, right? The antique vase and bronze statue are possible. The suitcase used foam plastic, which may have brushed the pollen out from inside and outside the vase."

Jiang Yuan said so, and everyone followed suit.

Botanists haven't done such experiments either, and they are not very clear—the difference between botany and forensic botany is that botany is a science about plants themselves, while forensic botany is often about plants and the relationship between plants and other things.

For example, will pollen stick to the bottle, and under what circumstances will it be wiped off the bottle...

Cui Qishan, as a criminal police officer, didn't think so much, just asked: "So, can the location be determined now?"

"Let's look for it."

Jiang Yuan let Wang Chuanxing pull the satellite pictures bit by bit.

The green belt is a line, although it is very long, but after zooming in and looking at it bit by bit, it doesn't feel like it takes effort.

Botanists feel quite happy.

"Here, here!" Someone shouted while looking.

"The proportion of lilac is wrong."

"You are looking at the current proportion is wrong, in October, the proportion might be right."

"Will the number of lilac trees now be consistent with the number of trees in October? And is there a traceable relationship between the number of flowers and the proportion?" Discussing academics, scholars can absolutely be very mean.

And the scholar who was attacked, although not young, could only calm down.

Most scholars have no hope of becoming a Jieqing in their lifetime, so they are not so particular about human relations.

Wang Chuanxing continued to pull the satellite map, but no one spoke for a long time.

Cui Qishan stood beside him and felt uncomfortable, and whispered to Tao Lu: "Don't skip it. The clarity is a bit low."

"Open the pattern." Tao Lu said: "If you skip it, just come again. It doesn't cost money."

"How about here?"

Jiang Yuan stopped Wang Chuanxing.

This time, Su Lei stood out: "Will the number of roses be too small?"

"En, indeed..." Jiang Yuan waved his hand and let Wang Chuanxing continue to pull.

Like this again and again, finally a location was selected.

"Antique bottles or boxes should have been placed here for a long time." Jiang Yuan and others discussed slightly and reached a conclusion.

Although the investigation direction has changed from before, this is really too common.

Cui Qishan nodded while calling out.

Soon, Xiao Si's phone called back: "We found an auction company."

It is very reasonable to have antiques in an auction company.

Cui Qishan thought about it and said: "Understand the situation with the nearby police station, ask the community police or people from other departments to go up and see, don't startle the snake."

"Yes." Li Jiang said and hung up the phone.

"This estimate will take a long time, let's eat something first." Tao Lu stood out actively. This time, regardless of whether the case can be solved, the botanists at the scene have paid a lot of effort after all.

The crowd filed out and headed to... the cafeteria for a meal.

Not long after sitting down, Xiao Si's phone called again: "We entered the auction company, and the people inside saw the police and ran away directly!"

"All ran?" Cui Qishan's face sank. It's impossible that everyone is a good person and runs when they see the police.

Xiao Si smiled bitterly: "Not all ran, the front desk is there. There is also one who is pulling shit and blocking the toilet, the rest ran from another door, someone chased over, but it is estimated that not many people can be caught." ===== CHAPTER 753 =====